This crocodile egg is perfectly innocent and docile whilst in its box but submerge it in water and that39s where the fun begins after twelve hours or so the shell will begin to crack and after 48 hours a baby crocodile will hatch and start pushing its way through the shell leave your crocodile in water for a full week and it will mature to its full size it39s the perfect way to raise a reptilian beast without the worry of having to feed it big chunks of meat from a safe distance